System of heating.



'Witnesse:

B. THOMSON.

SYSTEM OF HEATING,

APPLIOATION FILED AUG. 14, 1909. 1,031,489. Patented July 2, 1912.

3 SHEETS-SHEET 1.

E. THOMSON.

SYSTEM OF HEATING.

APPLICATION FILED AUG.14, 1U09.

Patented July 2, 1912.

3 SHEETS-SHEET 2.

Inventor: Elihu Th mson, b5 o ttg 'Witness-Zs:

E. THOMSON.

SYSTEM OF HEATING. APPLICATION FILED AUG. 14, 1909.

1,031,489, Patented July 2, 1912.

3 BHEETSSHEET 3.

ig.7. I 24 5Q Inventor-z Elihu TV: meson by flzM/z ditty,

' UNITED STATES PATENT OFFICE.

ELIHU THOMSON, F SWAMPSCOTT,-MASSACHUSETTS, ASSIGNORTTO GENERAL ELECTRIC COMPANY, A CORPORATION OF NEW YORK.

SYSTEM or HEATING.

-slpecification of Letters Patent.

Application filed Angus: 14, 1909.

Patented July 2, 1912. Serial 'No. 512,823.

To all whom it may concern Be it known that I, ELIHU THOMSON, a

citizen of the United States, residing at Swampscott, county of Essex, State of Massachusetts, have invented certain new and useful Improvements in Systems of Heating, of which the following is a specification. Y

This invention relates to heaters and heat-- ing systcms'and has for its objectthe provision of means whereby water or other fluid may be mechanically set into motion, and

rovided with impeding devices for resist mg the flow of the water and thereby transforming its energy into heat.

My invention relates more specifically to means for transforming electric energy into heat by the action of mechanical devices for agitating the water and heating the same. In carrying out my invention, I utilize means, such, for instance. as. an electric motor, foragitating the fluid in the boiler.

My system is particularly well adapted for use in trains heated by steam orhot water. Instead of employing an electrical resistance of the ordinary type, I utilize the current for driving an electric motor which in turn drivesa mechanical device which heats the water.

Other objects of my invention will appear in the course of the following specification, in which I have disclosed my invention embodied in concrete form for purposes of illustration.

In the drawings illustrating my.invention, Figure 1 is a vertical section of my heating device, the motor being in elevation Fig. 2 is a view showing the entire heating system; Figs. 3, 4, 5 and 6 show modified forms of impellers, Fig. 5 being a plan view of the impeller shown in Fig. 3; and Fig. 7 shows a sectional view of a modified form of fluid container.

Referring to the'drawings, 10 represents a fluid container or receptacle, which may be a boiler adapted for containing steam under pressure. This boiler is preferably lagged with heat insulating material 11, as, for instance, asbcstos or mineral wool. If desired, in order that the interior may be readily accessible, the boiler may have its end in the form ofa cap 12, which is bolted to the body, portion as shown. This receptacle is provided with legs 13, to which is connected the electric motor 14 having a vertical shaft 15, which extends upward through a stalling box 16 into the receptacle 10. Theparticular type of motor and its arrangementwith reference to the receptacle forms no'part of my invention, although I have shown the motor attached to the legs by means of the lugs 17 for pur.-- poses of illustration. Atthe-upper end of the shaft is a rotary element, such as the impeller 18, arranged within the receptacle so as to set the water in motion. This impeller 18 is surrounded by a casing 19 mounted upon supporting brackets 20. The casing is preferably cut away at its centralportion to allow the water to enter at. the center of the-impeller, while the impeding devices are arranged around the periphery of the impeller. These impeding devices may be of any desired form,-as, for instance,

in the form of annular plate 21 concent-ricall y arranged around the outside of the easing and spaced from each other so as to form narrow passages through which the water is forced. These passages cause a c0nsiderable drop in the pressure of the water and thereby convert the energy into heat. In order to prevent the turbulence or confusion of the water produced by the'agitution of the impeller from. reaching the up-. per surface, I have interposed perforated diaphragms 22. The forcible churning of the water-raises its temperature and the pressure developed may be read upon a gage 23 and controlled by safety valve 24. .The steam may be delivered through the pipe 25 and radiators 26, as shown.

In Fig. 2 I have shown a closed system, so that the stem which condenses in the pipes returns'to the hotwell 27 and is forced by means of a pump 28 to the boiler through the passage 29. A supply of cold water may also be furnished so as to make up the losses which may occur. The un-. boiled water would necessarily return to the intake, but all the chokings byyalvcs or the like, instead of being detrimental, tend to assist 'the'opcration by causing the ab sorption of the energy by the water.

In Figs. 3 and 5 I have shown another form of impeller in which the impedinglOS devices 30 form part of the impeller and rotate therewith. In this case the impeller is in the form of a paddle wheel 31 arranged ance to tlie free passage of the water.

In Fig. 4: I have shown another form of revolving element consisting of a disk 33 provided with pins 3% projecting from both sides of the plate and adapted to agitate the water. i

In Fig. 6 I have shown a slightly modified form in which the impeding devices consist of layers of wire gauze-or netting 35 arranged in the path of the water for impeding its motion.

In Fig. 7 I have shown another form in which the receptacle or boiler ;36 is arranged to one side of the impeller, which is in the form of a centrifugalpump 37 taking in fluid throughpassages'lld and 39 and discharging it around the. periphery through the passage 40. From this passage 40 the water passes through a-toi'tiious pas sage 41 formed of a flanged cap or cover 42 ever the flanged end of the upwardly turned portion of the passage 40. The amount of turbulence of the water may be varied by making the passage more or less tortuous and varying its lengthQ- Various modifications may be made in the structure 01' the parts and the arrangement thereof, and various other means of carrying out my invention will suggest themselves to those skilled in the art, the

.one essential feature of the invention being the causing ot' the liquid to he agitated or rendered turbulent by means of a moving element. All such means for bringing about taining it under pressure,an electric motor,

an impeller driven by said motor to circulate watcr in the container, and means tor impeding the said circulation to heat the water.

'2. Means for converting electric energy into heat comprising an electric motor, a

container, a piping system connected with tor for'setting the Water in said container in motion, and means for impeding the motion' of the water to convert its energy into i 3. Means for converting electric energy into heat comprising a container, means for forcing water intosaid container under pressure, an electric motor, an impeller driven by said motor for circulating the water in the container, means for impeding the said circulation to heat the water, and diaphragm plates for preventing turbulence of the water.

4. 'Means tor converting electric energy into heat comprising a. water container, a

supporting frame, an electric motormounted in said frame, an impeller mounted on the motor shaft and extending into the water for circulating the same, and means within said container for impeding the circulation of the water to convert itslenergy into heat.

5. Means for converting electric energyinto heat comprising a water container,' a piping system connected therewith, a pump for forcing water into the container, 'an

electric motor, an impeller mountedon the.

motor shaft and extending into the water to circulate the same within the container, i'

and means for impeding the motion of the water to convert its energy into steam.

electric motor mounted adjacent thereto, an impeller mounted on the motorshaft and extending into the water in. said container for circulating the same, means within said container foritnpeding thecirculation of the water to convert its-energyinto heat, and'diaphragin plates for preventing turbulence of the water. I

7. Means for converting electric energy into heat coinprising a water container,a supportiiig frame therefor, airelect-rid m0- tor IllOllllifQCl'lIl said frame, an impeller on the motor shaft extending into the fluid in' said container for circulating-the same, a' i pump for forcing water into said-container, means withinthe container for impeding the circulation of the .water to convert its energy into heat, and diaphragm-plates for preventing turbulence of the water.

In witness whereof, I have hereunto set .my hand this l2th-day of August, 1909.

ELIIIU THOMSON.

res" 

